74
Dye content % Min 95
Solubility 0.1% inwater Clear solution
Transition range (pH3.1 - 4.4) Pink -Orange-Yellow
Absorptionmaxima (pH3.1)
œ
1 Max. 501 - 504 nm
Absorptionmaxima (pH4.4)
œ
2 Max. 467 - 471 nm
Absorptivitymaximum (A1%/1 cmat pH 3.1, at
œ
1max) 1050 - 1150
Absorptivitymaximum (A1%/1cmat pH 4.4, at
œ
2max) 750 - 850
Loss on drying (at 110 °C) % Max 3
Product code:
C.A.S. :
EINECS :
413170100
547-58-0
208-925-3
MW =
Methyl orange
Analytical Reagent
C H N NaO S
327.33
14 14 3
3
100 gr
H301
P264-P270-P301-P310-P321-P405-P501A
Identity Passes test
Melting range°C 179 - 182
pH transition range (4.4 - 6.2) Red - yelloworange
Transition interval according toACS Passes test
Insolublematter in ethanol (1 gm/l) Passes test
Absorptionmaxima (buffer pH4.5) 523 - 526 nm
Absorptionmaxima (buffer pH6.2) 427 - 437 nm
Loss on drying (at 110 °C) % Max 5
Residue on ignition (as SO ) % Max 2
4
Product code:
C.A.S. :
EINECS :
413180025/0100
493-52-7
207-776-1
MW =
Methyl red
Analytical Reagent
C H N O
269.31
15 15 3 2
25 gr
100 gr
Appearance Dark brown coloured powder
pH transition (4.0 - 10.0) Red to yellow to blue
Product code:
213130005
Methyl thymol blue
Analytical Reagent
5 gr
Appearance Dark green crystallinepowder
Absorptionmaxima in ethanol 583 - 587 nm
Absorptivity (1%,1 cm,œmax.) Min 1600
Ratioœmax.P±15nm 1.060 - 1.190
Loss on drying (at 110° C) % Max 10
Product code:
C.A.S. :
213150025
8004-87-3
Methyl violet
F
or Microscopy
25 gr
H302-H319
P280-P264-P305-P351-P338-P301-P312-P337-P313-P501A
Assay About 40.0%w/v
Wt.perml at 15.5°C Abt. 0.904 g
Product code:
C.A.S. :
EINECS :
413260500
74-89-5
200-820-0
Methylamine soln. 40%
Laboratory Reagent
CH N MW =31.07
5
500 ml
H225-H318-H315-H332-H335
P210-P261-P303-P361-P353-P305-P351-P338-P405-P501A
Dyecontent (by titanometry) % Min 65
Absorptionmaxima inwater 630 - 635 nm
Zinc (Zn) % 7 - 11
Product code:
C.A.S. :
401000010
7114-03-6
EINECS :
230-415-4
MW =
Methyl green
F
or Microscopy
C H Cl N .ZnCl
608.78
27 35 2 3
2
10 gr
H315-H319-H335
P261-P280-P305-P351-P338-P304-P340-P405-P501A
Assay (HClO titration)%
Min 99
4
Specific rotation +22.5° to+ 24°
pH2.5%solution 5.5 - 6.5
Loss on drying (at 105 °C) %
Max 0.3
Residue on ignition (as SO ) % Max 0.1
4
Chloride (Cl) % Max 0.02
Sulfate (SO ) % Max 0.03
4
Iron (Fe) % Max 0.001
Heavymetals (as Pb) % Max 0.001
Ammonium(NH ) % Max 0.01
4
Foreign amino acids% Max 0.3
Other ninhydrinpositive substances (as glycine) % Max 0.1
Product code:
50413
C.A.S. :
63-68-3
EINECS :
200-562-9
0025
L-Methionine
Laboratory Reagent
C H NO S MW =149.21
5 11
2
25 gr
Absorptionmaximum in 0.005M, HCI 595 - 605 nm
Specific absorptivity in 0.005M, HCI 675 - 1125
Loss on drying (at 110°C) % Max 7
Suitability of microscopy Passes test
Product code:
C.A.S. :
413020025
28983-56-4
MW =
Methyl blue
F
or Microscopy
C H N O S Na
799.81
37 27 3 9 3 2
25 gr
H302-H315-H319-H335
P261-P305-P351-P338
